What do you suggest is a good course of action at this point? 

That should get the attention of someone high up to get some heads rolling.if it doesn't I would send another letter so the same higher up stating the actions you will take that will be billed back (plus any administrative surcharge) to the tenant for not performing per the lease.  

 $100 is totally doable but we'd need to know more about the action plan.

I have spent many years reading investing books, taking real estate classes and enrolling in real estate seminars but yet no I have not taken the most important step of taking action.  

So I'm new in real estate investing looking primarily into getting into buy and hold.  I picked up on the following lead.  Right now as a newbie I'm thinking this situation is not something I can move forward with but...

Unless we take deliberate action to build our businesses and work toward success every day, we soon find ourselves ten years down the line a decade older and no closer to our goals. 

Just the fact that they know record of this action has been made should make them think twice about any further BS.Brian

An example would be if an insured mortgagor vacated the home during a pending foreclosure action and the mortgagee was aware the property was now vacant.

I've been interested in REI since February, I've just been reading and trying to learn as much as I can but I really need to take action.

However, it's time consuming so you shouldn't be the one doing for too long.